Question: which subject has role and physically interacts with Citric_acid?
Paraphrase: What interacts physically and has role with Citric acid?
SPARQL (Wikidata): SELECT ?ans_1 ?ans_2 WHERE { wd:Q159683 wdt:P2868 ?ans_1 . wd:Q159683 wdt:P129 ?ans_2 }
Answer: anticoagulant, CS, Calcium Chelating Agents, CS, anticoagulant, Transient receptor potential cation channel, subfamily V, member 4, Calcium Chelating Agents, Transient receptor potential cation channel, subfamily V, member 4, anticoagulant, ACO2, Calcium Chelating Agents, ACO2, anticoagulant, Polycystin 2 like 1, transient receptor potential cation channel, Calcium Chelating Agents, Polycystin 2 like 1, transient receptor potential cation channel